net/dsa/vitesse-vsc73xx-platform.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
4  * Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
5  * Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
6  * Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
8  * This driver takes control of the switch chip connected over CPU-attached
13  * Based on vitesse-vsc-spi.c by:
23 #include "vitesse-vsc73xx.h"
32  * struct vsc73xx_platform - VSC73xx Platform state container
58 	struct vsc73xx_platform *vsc_platform = vsc->priv;  in vsc73xx_platform_read()
62 		return -EINVAL;  in vsc73xx_platform_read()
65 	/* By default vsc73xx running in big-endian mode.  in vsc73xx_platform_read()
68 	*val = ioread32be(vsc_platform->base_addr + offset);  in vsc73xx_platform_read()
76 	struct vsc73xx_platform *vsc_platform = vsc->priv;  in vsc73xx_platform_write()
80 		return -EINVAL;  in vsc73xx_platform_write()
83 	iowrite32be(val, vsc_platform->base_addr + offset);  in vsc73xx_platform_write()
90 	struct device *dev = &pdev->dev;  in vsc73xx_platform_probe()
96 		return -ENOMEM;  in vsc73xx_platform_probe()
99 	vsc_platform->pdev = pdev;  in vsc73xx_platform_probe()
100 	vsc_platform->vsc.dev = dev;  in vsc73xx_platform_probe()
101 	vsc_platform->vsc.priv = vsc_platform;  in vsc73xx_platform_probe()
102 	vsc_platform->vsc.ops = &vsc73xx_platform_ops;  in vsc73xx_platform_probe()
105 	vsc_platform->base_addr = devm_platform_ioremap_resource(pdev, 0);  in vsc73xx_platform_probe()
106 	if (IS_ERR(vsc_platform->base_addr)) {  in vsc73xx_platform_probe()
107 		dev_err(&pdev->dev, "cannot request I/O memory space\n");  in vsc73xx_platform_probe()
108 		ret = -ENXIO;  in vsc73xx_platform_probe()
112 	return vsc73xx_probe(&vsc_platform->vsc);  in vsc73xx_platform_probe()
122 	vsc73xx_remove(&vsc_platform->vsc);  in vsc73xx_platform_remove()
132 	vsc73xx_shutdown(&vsc_platform->vsc);  in vsc73xx_platform_shutdown()
164 		.name = "vsc73xx-platform",